Logitech K400R Wireless Touch Keyboard with Touchpad Black - No Receiver/Adapter

Logitech Black K400r Wireless Slim Keyboard Touchpad with USB Unifying Receiver

Logitech K400r Wireless Touch Keyboard Model : Y-R0019 ( No USB Receiver )

Logitech Wireless K400R Key Slim Keyboard with Touchpad Black (No Receiver)

Logitech Black K400r Wireless Slim Multi-Touch Keyboard Touchpad No USB Dongle

Logitech K400r Wireless Keyboard Built-In Multi-Touch Touchpad w/ Dongle

Logitech K400R Black Wireless USB Built-in Touchpad QWERTY Standard Keyboard

Logitech K400r Wireless Touch Keyboard Model : Y-R0019 - No USB Receiver